|श्रुतिसारसमुद्धरणम् - श्रीतोटकाचार्यः|
This is work of shrI-toTakAchArya. It is also known as toTakam. Obviously, it's a text book of advaita-vedAnta.
Keywords: toTakam; saMskR^itam; sanskrit; advaita; vedAnta
These are nR^isiMhapUrvatApanI and nR^isiMhottaratApanI upaniShad-s. First has bhAShyam of shrI-sha~NkarAchArya and other is commented by shrI-vidyAraNya. This was published by AnandAshrama saMsthA of puNe.
This is nR^isiMhatApanI upaniShad with bhAShyam of shrI-sha~NkarAchArya. This was published by Asiatic Society.